Aula Conversi (Dip. di Fisica - Edificio G. Marconi)
Aula Conversi
Dip. di Fisica - Edificio G. Marconi
Description
A century ago Cosmic Ray CR was born and 82 years ago up to now the Neutrino physics, astrophysics and mixing was rooted and based. At highest energy edges for different reasons they, CR (UHECR) and neutrino (UHE), should soon offer new exciting astronomy. CR are charged, bent and smeared but at highest energy they might be undeflected making astronomy. Neutrino are neutral and always undeflected but they are polluted at low (GeV-TeV) energies: indeed the same abundant smeared CRs are hitting on Earth edges making a parasite atmospheric neutrino noise that is hiding all potencial sources.However at highest energy the extraterrestrial signals may overcome (because their harder spectra) the soft atmospheric neutrino noise : the neutrino sudden flavor change at tens TeV-PeV energy discovered by ICECUBE last years probed it. The exact nature of UHECR and UHE neutrino astronomy is still unknown and controversial. Their maps are still puzzling. Each neutrino flavor express different story and may open a different sky view. UHECR suffer of cut-off and their maps might trace only nearby local Universe well within a percent of cosmic size. UHECR neutron and photons are more confined within local Group. UHE neutrino might test most far and secret Universe edges, but also galactic sources. The fast, caotic growth of article on these subjects test actuality on these frountiers. New results by AUGER, TA, ICECUBE will be discussed within updated bounds, expectations and possible map correlations.
